DTC144ECAT116

Overview

The DTC144ECAT116 is a single NPN digital transistor from the ROHM DTx series, housed in an SOT-23-3 (SST3) surface-mount package. It integrates bias resistors with typical values of 47 kOhms for both R1 and R2, maintaining a 1:1 ratio. Key electrical specifications include a collector-emitter voltage (VCEO) of 50 V, continuous collector current of 100 mA, and power dissipation of 200 mW. The device features a minimum DC current gain (hFE) of 68 at 5 mA/5 V, a transition frequency of 250 MHz, and an emitter-base voltage (VEBO) of 3 V. It operates within a temperature range up to +150°C.

Feature Summary

• Integrates built-in biasing resistors to simplify circuit design by eliminating external input resistors.
• Enables straightforward inverter circuit configuration through simple on/off control logic.
• Provides high-speed switching capabilities suitable for digital signal processing applications.

Applications

• Inverter circuits requiring simplified input stages
• Digital logic interface and level shifting
• Switching applications in portable electronic devices

Procurement Notes

Verify component authenticity against official ROHM Semiconductor documentation. Confirm that the ordering suffix matches the specific variant requirements. Ensure compliance with RoHS directives as indicated in manufacturer specifications. Cross-reference datasheet parameters with system design constraints before integration.

Selection Notes

Select this component when a single NPN digital transistor with 50V rating and 100mA current capacity is required. The 47kOhm internal resistor ratio suits standard logic interfaces. Consider thermal management for power dissipation limits in enclosed environments. Verify package compatibility with PCB footprint designs.

Part Context

This part belongs to the ROHM DTx series of digital transistors, which combine bipolar junction transistors with integrated bias resistors. The DTC144ECA designation indicates the base model, while AT116 specifies the tape-and-reel packaging format. This series is designed for space-saving and cost-effective digital switching solutions.

Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include DDTA144ECA-7-F from Diodes Incorporated and DTA144ECA-TP from MCC. Verify pinout compatibility and electrical parameter alignment before substitution.